公开(公告)号：US20210039295A1

公开(公告)日：2021-02-11

申请号：US17041556

申请日：2019-04-08

申请人： KRAUSSMAFFEI EXTRUSION GMBH

发明人： Frank Reineke

IPC分类号： B29C48/255 ,  B29C48/25 ,  B29C48/30 ,  B29C48/70 ,  B29C48/505

摘要： An extrusion device including at least one extruder having a screw cylinder, a screw shaft rotatably supported in the screw cylinder and an extruder outlet, an injection mould having an outlet nozzle determining the cross-sectional contour of the extruder, and an extrusion head arranged between the extruder outlet of the at least one extruder and the outlet nozzle of the injection mould, wherein at least one perforated plate arranged in the extruder head is provided, which has a plurality of passage openings, wherein the passage openings are designed to dam up extrusion material conveyed from the at least one extruder through the passage openings of the perforated plate differently into at least one first region of the perforated plate and at least one second region of the perforated plate, in such a way that the extrusion material is partly diverted from its preferential direction within a central section of the perforated plate, specifically increasingly into at least one edge section of the perforated plate.